Drum brake apparatus

Brakes – Wheel – Transversely movable

Reexamination Certificate

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Details

C188S328000, C188S079510, C188S079540

Reexamination Certificate

active

07070025

ABSTRACT:
An automatic clearance adjusting device10that automatically adjusts the position of brake shoes (3, 4) based on the wear includes an adjuster gear that is rotatably depending on the amount of how much the brake shoes are parted from each other, a cam plate (25) rotated integrally with the adjuster gear (23) to drive the strut (27) that restricts the position of the brake shoes (3, 4), and an adjuster restricting lever (33) that restricts the rotation of the adjuster gear (23) based on the pressing force from the wheel cylinder (6) that parts between the pair of brake shoes (3, 4).

REFERENCES:
patent: 3998297 (1976-12-01), Aono
patent: 4015693 (1977-04-01), Hayashida et al.
patent: B-43-21822 (1964-01-01), None
patent: B-51-12782 (1976-04-01), None
patent: B-56-34733 (1981-08-01), None
patent: B-63-33567 (1988-07-01), None
patent: B-2-21456 (1990-05-01), None

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